1.make it can been compiled with Visual Studio 2010

2.replace json_object_get/put API with json_object_retain/release, as they operate the reference counter, and confused with array_list_get/put_idx.
3.replace array_list_get/put_idx API with array_list_get/insert to make them more clear to use.

CMakeLists.txt

@@ -52,6 +52,8 @@ set(JSON_C_HEADERS
     ./linkhash.h
     ./math_compat.h
     ./strdup_compat.h
+	./strerror_override.h
+	./strerror_override_private
     ./vasprintf_compat.h
     ./printbuf.h
     ./random_seed.h
@@ -66,6 +68,7 @@ set(JSON_C_SOURCES
     ./json_util.c
     ./linkhash.c
     ./printbuf.c
+	./strerror_override.c
     ./random_seed.c
 )
 

arraylist.c

@@ -62,7 +62,7 @@ array_list_free(struct array_list *arr)
 }
 
 void*
-array_list_get_idx(struct array_list *arr, size_t i)
+array_list_get(struct array_list *arr, size_t i)
 {
   if(i >= arr->length) return NULL;
   return arr->array[i];
@@ -92,7 +92,7 @@ static int array_list_expand_internal(struct array_list *arr, size_t max)
 }
 
 int
-array_list_put_idx(struct array_list *arr, size_t idx, void *data)
+array_list_insert(struct array_list *arr, size_t idx, void *data)
 {
   if (idx > SIZE_T_MAX - 1 ) return -1;
   if(array_list_expand_internal(arr, idx+1)) return -1;
@@ -106,7 +106,7 @@ array_list_put_idx(struct array_list *arr, size_t idx, void *data)
 int
 array_list_add(struct array_list *arr, void *data)
 {
-  return array_list_put_idx(arr, arr->length, data);
+  return array_list_insert(arr, arr->length, data);
 }
 
 void

arraylist.h

@@ -35,10 +35,10 @@ extern void
 array_list_free(struct array_list *al);
 
 extern void*
-array_list_get_idx(struct array_list *al, size_t i);
+array_list_get(struct array_list *al, size_t i);
 
 extern int
-array_list_put_idx(struct array_list *al, size_t i, void *data);
+array_list_insert(struct array_list *al, size_t i, void *data);
 
 extern int
 array_list_add(struct array_list *al, void *data);

json_object.c

@@ -167,14 +167,14 @@ static int json_escape_str(struct printbuf *pb, const char *str, int len, int fl
 
 /* reference counting */
 
-extern struct json_object* json_object_get(struct json_object *jso)
+extern struct json_object* json_object_retain(struct json_object *jso)
 {
 	if (jso)
 		jso->_ref_count++;
 	return jso;
 }
 
-int json_object_put(struct json_object *jso)
+int json_object_release(struct json_object *jso)
 {
 	if(jso)
 	{
@@ -408,7 +408,7 @@ static void json_object_lh_entry_free(struct lh_entry *ent)
 {
 	if (!ent->k_is_constant)
 		free(lh_entry_k(ent));
-	json_object_put((struct json_object*)lh_entry_v(ent));
+	json_object_release((struct json_object*)lh_entry_v(ent));
 }
 
 static void json_object_object_delete(struct json_object* jso)
@@ -453,13 +453,15 @@ int json_object_object_add_ex(struct json_object* jso,
 	struct json_object *const val,
 	const unsigned opts)
 {
+	struct json_object *existing_value = NULL;
+	struct lh_entry *existing_entry;
+	unsigned long hash;
+
 	assert(json_object_get_type(jso) == json_type_object);
 
 	// We lookup the entry and replace the value, rather than just deleting
 	// and re-adding it, so the existing key remains valid.
-	json_object *existing_value = NULL;
-	struct lh_entry *existing_entry;
-	const unsigned long hash = lh_get_hash(jso->o.c_object, (const void *)key);
+	hash = lh_get_hash(jso->o.c_object, (const void *)key);
 	existing_entry = (opts & JSON_C_OBJECT_ADD_KEY_IS_NEW) ? NULL : 
 			      lh_table_lookup_entry_w_hash(jso->o.c_object,
 							   (const void *)key, hash);
@@ -479,7 +481,7 @@ int json_object_object_add_ex(struct json_object* jso,
 	}
 	existing_value = (json_object *) lh_entry_v(existing_entry);
 	if (existing_value)
-		json_object_put(existing_value);
+		json_object_release(existing_value);
 	existing_entry->v = val;
 	return 0;
 }
@@ -841,11 +843,12 @@ struct json_object* json_object_new_double(double d)
 
 struct json_object* json_object_new_double_s(double d, const char *ds)
 {
+	char *new_ds;
 	struct json_object *jso = json_object_new_double(d);
 	if (!jso)
 		return NULL;
 
-	char *new_ds = strdup(ds);
+	new_ds = strdup(ds);
 	if (!new_ds)
 	{
 		json_object_generic_delete(jso);
@@ -1025,8 +1028,8 @@ int json_object_set_string(json_object* jso, const char* s) {
 }
 
 int json_object_set_string_len(json_object* jso, const char* s, int len){
-	if (jso==NULL || jso->o_type!=json_type_string) return 0; 	
 	char *dstbuf; 
+	if (jso==NULL || jso->o_type!=json_type_string) return 0; 	
 	if (len<LEN_DIRECT_STRING_DATA) {
 		dstbuf=jso->o.c_string.str.data;
 		if (jso->o.c_string.len>=LEN_DIRECT_STRING_DATA) free(jso->o.c_string.str.ptr); 
@@ -1089,7 +1092,7 @@ static int json_object_array_to_json_string(struct json_object* jso,
 
 static void json_object_array_entry_free(void *data)
 {
-	json_object_put((struct json_object*)data);
+	json_object_release((struct json_object*)data);
 }
 
 static void json_object_array_delete(struct json_object* jso)
@@ -1166,7 +1169,7 @@ int json_object_array_put_idx(struct json_object *jso, size_t idx,
 			      struct json_object *val)
 {
 	assert(json_object_get_type(jso) == json_type_array);
-	return array_list_put_idx(jso->o.c_array, idx, val);
+	return array_list_insert(jso->o.c_array, idx, val);
 }
 
 int json_object_array_del_idx(struct json_object *jso, size_t idx, size_t count)
@@ -1179,7 +1182,7 @@ struct json_object* json_object_array_get_idx(const struct json_object *jso,
 					      size_t idx)
 {
 	assert(json_object_get_type(jso) == json_type_array);
-	return (struct json_object*)array_list_get_idx(jso->o.c_array, idx);
+	return (struct json_object*)array_list_get(jso->o.c_array, idx);
 }
 
 static int json_array_equal(struct json_object* jso1,

json_object.h

@@ -182,7 +182,7 @@ typedef enum json_type {
  *
  * @param obj the json_object instance
  */
-JSON_EXPORT struct json_object* json_object_get(struct json_object *obj);
+JSON_EXPORT struct json_object* json_object_retain(struct json_object *obj);
 
 /**
  * Decrement the reference count of json_object and free if it reaches zero.
@@ -192,7 +192,7 @@ JSON_EXPORT struct json_object* json_object_get(struct json_object *obj);
  * @param obj the json_object instance
  * @returns 1 if the object was freed.
  */
-JSON_EXPORT int json_object_put(struct json_object *obj);
+JSON_EXPORT int json_object_release(struct json_object *obj);
 
 /**
  * Check if the json_object is of a given type

json_pointer.c

@@ -240,7 +240,7 @@ int json_pointer_set(struct json_object **obj, const char *path, struct json_obj
 	}
 
 	if (path[0] == '\0') {
-		json_object_put(*obj);
+		json_object_release(*obj);
 		*obj = value;
 		return 0;
 	}
@@ -294,7 +294,7 @@ int json_pointer_setf(struct json_object **obj, struct json_object *value, const
 		return rc;
 
 	if (path_copy[0] == '\0') {
-		json_object_put(*obj);
+		json_object_release(*obj);
 		*obj = value;
 		goto out;
 	}

json_tokener.c

@@ -139,7 +139,7 @@ static void json_tokener_reset_level(struct json_tokener *tok, int depth)
 {
   tok->stack[depth].state = json_tokener_state_eatws;
   tok->stack[depth].saved_state = json_tokener_state_start;
-  json_object_put(tok->stack[depth].current);
+  json_object_release(tok->stack[depth].current);
   tok->stack[depth].current = NULL;
   free(tok->stack[depth].obj_field_name);
   tok->stack[depth].obj_field_name = NULL;
@@ -178,7 +178,7 @@ struct json_object* json_tokener_parse_verbose(const char *str,
     *error = tok->err;
     if(tok->err != json_tokener_success) {
 		if (obj != NULL)
-			json_object_put(obj);
+			json_object_release(obj);
         obj = NULL;
     }
 
@@ -378,7 +378,7 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
 
     case json_tokener_state_finish:
       if(tok->depth == 0) goto out;
-      obj = json_object_get(current);
+      obj = json_object_retain(current);
       json_tokener_reset_level(tok, tok->depth);
       tok->depth--;
       goto redo_char;
@@ -387,10 +387,11 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
       {
 	size_t size_inf;
 	int is_negative = 0;
+	char *infbuf;
 
 	printbuf_memappend_fast(tok->pb, &c, 1);
 	size_inf = json_min(tok->st_pos+1, json_inf_str_len);
-	char *infbuf = tok->pb->buf;
+	infbuf = tok->pb->buf;
 	if (*infbuf == '-')
 	{
 		infbuf++;
@@ -958,7 +959,7 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
 
   if (tok->err == json_tokener_success)
   {
-    json_object *ret = json_object_get(current);
+    json_object *ret = json_object_retain(current);
 	int ii;
 
 	/* Partially reset, so we parse additional objects on subsequent calls. */

linkhash.c

@@ -560,6 +560,11 @@ int lh_table_resize(struct lh_table *t, int new_size)
 	return 0;
 }
 
+unsigned long lh_get_hash(const struct lh_table *t, const void *k)
+{
+	return t->hash_fn(k);
+}
+
 void lh_table_free(struct lh_table *t)
 {
 	struct lh_entry *c;

linkhash.h

@@ -332,10 +332,7 @@ int lh_table_resize(struct lh_table *t, int new_size);
  * @param k a pointer to the key to lookup
  * @return the key's hash
  */
-static inline unsigned long lh_get_hash(const struct lh_table *t, const void *k)
-{
-	return t->hash_fn(k);
-}
+unsigned long lh_get_hash(const struct lh_table *t, const void *k);
 
 /* Don't use this outside of linkhash.h: */
 #ifdef __UNCONST

random_seed.c

@@ -186,11 +186,11 @@ static int get_dev_random_seed()
 
 static int get_cryptgenrandom_seed()
 {
-    DEBUG_SEED("get_cryptgenrandom_seed");
-
     HCRYPTPROV hProvider = 0;
     int r;
 
+    DEBUG_SEED("get_cryptgenrandom_seed");
+
     if (!CryptAcquireContextW(&hProvider, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
         fprintf(stderr, "error CryptAcquireContextW");
         exit(1);